Package of fragile articles



PAcKAG oE FRAGLB ARTcLBS F1ed Dec. 20, 1961 4 SheetSsheet 5 FIG.4

INVENTOR,

RCHARD A- coEN BY Dec. 14, 1965 R. A. coEN 3,223,232

Fi1ed Dec. 20, 1961 4 sheetsshee INVENTOR. RcHARD A COEN BY UnitedStateS Patent o This invention felateS to the aft of acking of packagingafficleS, objectS and nlatefialS of vafioUS kinds fof tfanS- poftation,pfeSefvaTfoff, Stofage etc., and it iS the genefal obect of theinvention to pfoVide siInple, pfactfcal and dependable oleanS andInethods fof packaging of packing afticleS and n1atefialS that afe ffagedoncate and eaSily damagod.

Thefe afe fnany claSSeS of objecfS and matefialS that fequife Specialpackfng and pfotection fof the pofpose of Shipping, Stofing of foffnefely pfeSefving the saIne. TheSe ioClode ffagilo and pofiShabloafticles such aS deli cafe labofatofy g]asswafe, electfonic, electficaland )fay equipfnent having thin eaSily bfoken glass envelopes, ShocksenSifive ITlatefial Such aS thoSe containfng ff11- ninates of fhe like,delicate optical inStfuInentS and con1 oonentS fI1odica and S11fgicaleqUipnlenf, valuable and ffagi1 antiques and afcheologicaI obectS etc.,vibfation aI1d Shock SeflSitive fnechaniSn1S, and tho like.

(Zonventional pfocednfeS fof packing of packaging the above n1atefialsvvhich utilize foan1ed feSfns s11Ch aS polyofethane aS a coShioningfIledi11In fof Said afticleS have pfoven costly and ineicient. ThiS iStfHe sinCe in ofdef to obtain pfotecfion againSf bfeakage of othefdafnage, the afticIe that is to be laced in the containef befofe thocoShioning fflatefial foaffled and the CUShioning fnatefial thefefofohad to foaffl afoUnd the fIlateffaI aftef it was packaged. In ofdef togain access to the matefial Whin the package it iS neCeSSafy tophySiCally teaf into the foafn, thuS Inaking the ackage and ackingn1atefial Un uSable aftef the afticle iS fefnoved. Anothef diSadvantageof the known packagng of packing pfocedofes uti liZfng foafned fesinSSuch aS polyUfethane is that they pfo vided 110 eaSy of convenientffletflod of fenloving the obiect ffom the cafton of box Wifhootcompletely dan1- aging the package, ThuS, aS Seen i11 pfactice, fIlostof the chipping of danlage of an afticle packaged ffl thiS fflannofoccufS dufing the na1 Step of feInoving the afticlo ffof11 the package.Anofhef disadvantage of oti- 1Zing fevioos packing of packagingpfoCedufeS iS that it is di0iCUlt, if not inpoSSible, to centef theafticle vvithin the containef so as to aifofd the afticle the fnaxiInllmcoShioning pfofection. confainefs bnlky, hafd to caffy of stofe sincethey afe sllbiect to tipping, invefting, eto. BesideS the lack ofcentefing fovided by the Iiof aft Inethod of packing and ackaging, makeSit ifnpoSSible to SafeIy Stofe, pack of package a pIUfality of diefentobiects at diffefeI1t loca ffofS vfthin the containef So aS to utiliZethe nlaxinlun1 Space vithfn any givef1 containef.

An obiect of thiS invention iS to pfovide a IneanS and mefhod of packingof packaging a potentiany damageable afficle of a plofaHty of aftfcleSto pfovide fnaximom pfotection.

A fofthef obiect of thiS invention iS to pfovide a fneanS and Inethod ofpacking of packaging a pofentiaHy damagable natefial to pfovideITlaXiInnIn pfotection against vi bfafional Shock, thefffla1 conditionS,in1pact, invefting, tipping and othof potentiaHy daInaging tfeatfnent.

A fufthef object of thiS inf ention iS to pfovide a pack age otiliZing afoanled plastic as the cUShioning fnatefial vvhefeby the contenfs of thepackage Inay be fefno ed sifnpIy and eaSHy ffofn the package WithoutdeStfoying the foamed package.

ThiS lack of centefing makeS these D A fofthef object of thiS inventioniS to pfovide a packing IneanS that can be feuSed upon SubSequentocCaSionS.

A fofthef object of thiS inventio11 is to pfovide a pack aging n1eanSthat can be 11tilized to pfovide fnaxiInUn1 pfotection fof potentiaHydamagable afticleS WhiCh afe packed at diffefent and Sopafate lovelSwithin the packaging n1eanS.

A fllfthef obiect of thiS invention iS to pfovide a fnethod of packingof packaging potentiaHy damagable afticleS So aS to be able to placo theafticle at any desifed positfon vvithin the containef.

()thef objects and featofeS of the invention vvill becofne appafen ffoInthe foHowing detailed descfiption of Sevefal typical fofmS of packagingof packing and fnethods of pfoviding the same accofding to thisinvention, thfoughout which descfiption fefefence vill be Inade to theaccoInpanying dfawingS vvhefein:

FIGURE 1 is a vertical cross sectional view of the ackage of packingaccofding to the invention;

FIGURE Z iS a pefSpective schematic view of the Ineth od of packagingaccofding to this invention;

FIGURE 3 is a eTS ectve vievv of the acked of ackaged containef of thiSinvention aftef the package haS been opened;

FIGURE 4 is a erS ective schematic view showin a continuoUS vefticalponf Inethod of packaging of packing objects accofding to anothefen1bodifnent of the invention;

FIGURE is a veftical cfoSS Sectional vieW Showing a Inoltiple packagingaffangen1ent accofdng to anothof en1bodiInent of the invention.

Referrin now to fIGURE 1 which is a vertical cross sectional view of thepackage of packing affangenlent ac cofding to the invention, it can beseen that the potentiany damagable fnatefial of obiect 2 which in thiscaSe iS a sepafatofy funnel is packed in a confainef 4. The con tainef 4n1ay be conSffuoted ffofn any Solid, figid ff1ate fial Sucf1 aScafdboafd, Wood, Inetal of cefaInic of nay be i11 the natnfe of a Inoldlined with papef, celfophane, fabfic of the lfke. on the othef hand, thecontainef 4 Inay be conStfucted ffoIn a hafd figid plaStic. The potenfiaHy destfuctabIe matefial 2 nlay be placed in a pfo tecIi eenvelope o- ThiS pfotective envelope 6 ITlay be composed of a figidffanle n1eInbef 8 Which may consiSt of botton1 and top ffame halveS 9and 9 Which fnay be Sealed togethef by meanS of gloe, adheSive, tackingof the like to foffn said Solid figid ffan1e n1efnbef 8. A1fefna tivelyffanle n1eInbef 8 can be a onitafy ffaffle vhich opon cutting of thefiflal package, vfl1 be cut into the halveS vVhich Coffespond to 9 afld9. The ffanle halveS 9 and 9 Which afe adapted to be sepafated ffom eachothef by n1eanS of teafing, cutting, etc., caffy covefing SheetS 10 and10 feSpectively. The covefing Sheet 10 Which is attached fo the bottomffame half 9 and the covefing Sheet 10 Which is attached to the topffanle haIf 9 Inay be n1ade oot of any figfd of Hexible plaStic Sheetn1atefia1 S11ch aS polyethylene, Mylaf (polyethylene tefephthalate),poystyfene, polyvinyI chlofide, polyvinyndene chlofide, etc. Thecovefing SheetS 10 and 10 also may be fnade of waXed papef, glaSSinepapef ceHo phane, of the like.

It is a featofe of thiS invention that envelope o, containing afticle ofobiect Z whiCh fs Sealed betWeen ffan1e half 9 and ffanle half 9, iSSuffounded within the oontainef 4 by a bottofn coShioning fayef Z and atop cUShioning layef 13, Said coShioning layefS consiSting of foamedfeSinoUS fnatofial. The foafI1ed feSino1S coShioning layefS 12 and 13Inay difectly adhefe fo covefing Sheot 10 of ffaIno half 9 and covofingSheet 10 of ffafne half 9 foSpectively. The afficle 2 nlay be vacuumsealed Within envelope o. Also within the seal pfovided by covefingSheets 10 and 10 thefe may be placed a pfeSefvative, gfeaSe, aflti-fflStcofnpound efc., to fesofve the afticle 2 d11fing Sfofage. The covefingsheetS and 10 pfovfde a liquid and/of aif tight seal fof afticlo 2. Inofdef to suppoft envelopo 6 cleaf of all the vvallS of the containef 4and in the deSifed poSition, Suppoft fnefnbefs and 16 afe suppHed.Suppoff n1embefs 15 may be attached to tho bofton1 vvall of thecontainef 4 vVhile Suppoft fffel:(1befs 16 n1 ay be attached to the topwall of containef 4. The sUppoft n1efnbefs 15 and 16 Inay be ITlade outof coffugafed cafdboafd. figid plaSfic of fnefal.

It Win be obsofVed thaf the soppoft membofs 15 and 16 can Suppoftenvelope 6 containing tho potentially danage ablo fflafefi^al 2anyvVhofo vvithin the confainef 4. f 11so it can bo obsefved fhat thepotentia11y daInagea'ble n1atefial iS entifely encloSed withif1 theplastic Sheet covefingS 10 and 10 vvhich afe s11ffounded by the enef gyabSofbing and Shock ifflpact feSiStant foan1ed plaStic layefs 12 and 13.By IneanS of the suppofting InefnbefS 15 and 16, envelope 6 Inay belocated Within Containef 4 in the poSition ooffesponding fo the c11tfingplane of con fainef 4, Which fflay be designated by a line 14 on theoUtsfde vvallS 7 of containef 4. Enve1ope 6 fnay be sitllafed inconfainef 4 So that covefing Sheet 10 1ios belovv line 14 and covefingsheet 10 1ieS above line 14. Upon inSefting a knife thfough line 14,ffame half 9 Sepafates ffom ffamo half 9 allovving ffee access toafticle 2 vvithout cutting, feafing of femoving foafned plastic layefS12 and 13.

FIGURE Z iS a pefspective Schefffatic vievv ill11Stfafing the packagingInethod and package of this invention. Containef 4 having SuppoftingmembefS 15which n1ay be attached fo tho containef 4 Inay be paftiallyfilled with a half Shot of foafnable nlatefial 18, vvhich upon foan1ing,fofInS the boftoIn foafned oushioning layef 12. 111e Shof of foafnablefnatefial Inay be ponfed into the opon confainef 4 ffon1 a Sup ly sonfce19. The suppofting Inem- 1)efS 15 Inay be poSitioned vvithil1 containef4 so as to SUppoft envelope 6 at the pfopef outting plane level vvhichfnay be deSignated by the hofizonfal line 14 afld vvhich fnay be dfavvnon the outSide vvallS 7 of containef 4. Envelope 6 Wflich iS then placedon suppofting mofnbefs 15 fnay be constfncfed by p1acing the potentiallydafnageable object 2, Which in t his caSe is a glass sepafatofy funnel,Upon the botfoIn Covefing Sheet 10 of ffafffe half 9. TOp ffaIIle half 9caffying the top cov(fing Sheet 10 n1ay be then attached to fhe ffaInehalf 9 by n1eanS of heat soaling, gluing, Stapling of the like, so aS topf()vide a Seal fof the potentiany damageable objects 2.

Envelope 6 containing the potentiany dan1ageable obioctS 2 fnay be thenplaced ovef fhe layef 12 befofe any Substantial foafning takes p1ace.1Jpofl foaIning, layef 12 vvhich n1ay adhefe to the bottom covefingsheet 10 of the enve1ope 6. suppofts in conjunction vvith InefflbefS 15envelope 6 Within the containef 4 in a position coffeSpond if1g to line14. Aftef envelope 6 iS positioned vvithin the containef 4, a Secondhalf Shot of foaInable fIlatefial 18 Iflay be then ponfed into containef4 above envelope 6. IJpon foan1ing, the half shot 18 foffffs the topfoanled cuSh1oning layof 13 (FIGURE. 1) Which snppofts en volope 6 inthe desifed indicated position. Tho step of ponfing the second half Shot18 into the containef fTlay be pfefefably caffied oI1t iffffnediatelyaftef onvelope 6 iS positioned vVithin containef 4 So aS to.pfeventenvelope 6 ffoff1 Inoving out of its pfedeteffflined position. Contoinef 4 n1ay then be cloSed and sealed. Aftef pfopef aging containef 4is feady fof Shipfnent.

v By the abovo fnentioned pfocedUfe, the potentially dafnageableInatefial of object 2 iS safely ackaged in containef 4 feady fofshipfnent. AS caf1 be seen ffolT1 the above deScfiption, the afticle 2n1aybe placed in the containef in any desifed )osition befofe foan1ingcon1- pletely takes place. Upon foaming the foamed Inatefials fofIn thecuShioning layefs 12 and 13 Which pfotects the potentiaHy dan1ageableafticle 2 and Suppoft the afticlo in the doSifed poSition. I1enCe bythis Inethod, if iS poSSible fo position the afticle of obiect 2 in theInost desifable position fof Shipping So as to fevent the packaged containofS ffoIn being too bulky. An additiona1 advantage of thiS fflethodis that it pfeventS any fnovefnent of the afticle vvithin containef 4.By this Inethod, the afticleS of afticle 2 can be positionod vVitflinthe containef so that it may bo eaSily fen1oved ffoff1 the packagevvithout the neceSSity of toafing thfongh the foaned Iflatefial.

AS can be seen ffom FIGURE 3 which is a efs ective viow of containef 4of this invention opened 11p and bofofe tho pofentially bfoakablecontentS confained vvith in this pac1age afo fofnoved, confainef 4confaining the foanled feSin layefs 12 and 13 and the envelope 6 fnay beeaSily feuSed to ship of stofe potentially danlageable ob iectS ofappfoxifflately tho saIne siZe and shape. In open ing the containof 4 tofofnove the potentially dafnageable fflafefial of obiect 2, thecontainef 4 Inay be cuf by S11ch fneanS as a knife (nof Shovvn) aIongdotted line 14 (FI(} URES 1 and 2 B cUttin alon line 14 the Sealbetvveen ffan1e half 9 and 9 is deStfoyed, allovving the figid frameInembef 8 FIGURES 1 and 2 to o en into the two ffame halvoS 9 and 9 Sofhat the obiect 2 can be easily and neatly fen1ovod ffofn the containof1 WithoI1t deStfoying the packaging conStfuction and teafing thfough thefoaffled feSin cushioning layefS 12 and 13 of tho con tainef 4. In t11isfnannef the obiecf 2 Inay be eaSily fe fnoved ffom the containef 4Without dangef of chipping of daInaging the afticle 2 dufing itSfen1oval. As can be Seon ffoff1 FIGURE 3, the open containef 2 haS abottoff1 compaftment 3 cofnpoSed of the bottom foafned layef 12 andffame half 9 and a top compaftment 3 compoSed of the top foafned layef13 and tho ffame half 9. Thus in the opened package, the foan1edcushioning Inatefial is ifI the Safne poSition aS it vvas in the sealedcontainef. Hence in ofdef fo fefnove the afticlo ffom the containef 4thefe is no need to touch the foaIned cushioning layefs 12 and 13.

In ofdef to fouso tho confainef 4 the afticle 2, of Sifnilaf afticleS,Inay be placed in the d-epfeSSions in the foam afonnd the ofi-ginalafticle and then the tvvo coInpaftfnen ts 3 and 3 of the containef Inaybe c1OSed and sealed by any conventional means nd the unit iS feady fofShipfflent. In this pfoceSS ffan1e half 9 n1ay be Sealed to ffame half 9of the ffame halves 9 and 9 may bo jI1St placed on top of each othef.Ffan1o half 9 fnay be sealed fo ffan1e half 9 by any of the conventionalInethodS of Sealing Such aS heat sealin g, tacking, stapling, gluing ofthe like.

FIGURE 4 illI1StTates a method of Te arin the ackage of the inventionenlbodying the veftical poufing pfocedufe whefe1)y the packing opefationis peffofn1ed continnouSly. As Seen in FIGURE 4 a sefies of con tainefs4 afe voftically placed on a conveyef belt 21 Which Inay be dfiven atboth endS by follefS 24. vvith in each of the containefs 4 Inay boplaced envelopes 6 vvhich fnay conlpfiSe ffaffle halves 9 and 9containing a covefing Sheef 10 of 10 feSpectively vvhich enclose thepotentiany daInagable obiect of afticlo 2. Envelope 6 vvhich divideS theconfainef 4 into tvvo conlpaftn1entS 3 and 3 iS Inaintained iff thedeSifed poSition vvithin con tainef 4 by fneanS of suppoft Ine If1befS15 and 16. The foan1 fnatefial in liquid fofn1 26 is ponfed into eachcofn 1)aftffle11t 3 and 3 of the containef 4 by ffleanS of aI1 iniectionspont of nozzle 27 of an appafatns fof Inanufactufing foafned plastics(not ShOWn) such aS the ap pafatUS diScloSed by Ho pe in U.S. Patent2.764 565. AS the cofnpaftfnents 3 of 3 of containef 4 pass difectlyundef the iniectiof1 Spout of noZzle 27, they feceive a shot of foan1fnatefia1 26 in liqI1id foffn. Aftef cofnpaftfnentS 3 of 3 pass ffon1the iniection spout of nozzle 27, the liquid foam o1atefia1 fiSeS andfoamS WithiI1 tho cofn paftmentS 3 of 3 Whefo a Solid foam foffnS Whichcom pletely fills the conlpaftn1ents 3 of 3. The containef 4 nlay thentfave1 to anothef station vhefe it then fnay be Sealed (not Shovvn).Aftef sealing, the containef Inay the11 be aged befofe it iS feady fofshipInent. fging nlay be acCoInp1iShed by 1eaviog the containef Standingfof one day at foom fen1pefatofe.

By the pfocedofe of th1S invenfion ollt1i1ed iff FIG URES 2 and 4,obiectS may be n1olti-packed within the iven sin le container 4. FIGURE5 iS an iHustration of obiects ff1I11fi-packaged Within a Sing1econtafflef accofding to thiS invenfion. In thiS caSe the potentianydan1agable obieofs 52 fnay be encloSed Within diffefent enve1opeS 34,each enve1ope 34 cofnpfiSing ffafne ha1veS 35 and 35 and Covefing SheefS36 and 3o. T be ffafne ha1ves 35 and 35 fIlay be he1d vithin thecontainef if1 the desifed position by nleanS of Suppoft nlen1befs 38 sothat they fofff1 con1paftnlents 40 Within fhe containef 30. A foanlablefeSif1 fI1ixt11fe Inay be placed in each of fhe cofn aftolentS 40 byII1eanS illoStfafed in FIG URES 2 and 4 So fhat opon foaming the fesiffexpands, Solidifies and adhefeS of paffially adhefoS to the covefingsheefS 36 af1d 3o to fofo1 the foafned layofs 41 vithiI1 eachcoolpafffnent 40 Whfch nlay soppoft the bottoff and 1he top of envelope34 in a desifed poSftiof1. Coffesponding fo the ends of the setS ofSoopoftS 38 vhic11 hold the ffaIne halves 35 and 35 if1 the deSifodpoSifionS afe lineS 45 dfaWf1 on the outef Snfface 44 of the containefvvhicff deSignate the cUtting lanes whefeby the package ITlay bo openedeaS1y vvithoot c11tting of teafing iflfo the foan1 and the obiectS 32fefnoved ffofn theif vafioos of1- ve1opes 34. AL fufthef advantage ofthis fnethod iS that only Sofne of the desifed InatefialS of objectS 32fnay be feoloved ffoIn the contaiflef 30 at any one tifne a11oving theconfainef to be feSealed at the point at vvhich the de- Sifed object isfefnoved and the balance of the objectS 32 Saved fof feShipInent of1afef fen1oval. Since this iS the caSe, the box of containef affefopenfng n1ay be fe11Sed by fapng of Sealing the cut poftions of thecof1- taifxef 30.

AS the pfotective cUShioning layefs 1Z, 13 and 41 with io the package ofcontainof of thiS invention, it iS pfo feffod that a foan1edpolyufethane feSif1 having denSity ffon1 0.5 to 1.5 IbS. cu. ft. be USedSinoe theSo feSiI1S afe low in cosf and give fnaxffn11fn )fotection tothe potenoany damagable afticlo of afticleS that afo to be packed-Foa1ed feSins havig highof of lowef deositieS Inay be f1filize(1 in thiSinventiofl vithoot altefing the beneficial fesults obtained by thepackage of thiS invention.

The pfefeffed low denSity po1yufe'thane fesins fof uSe in fhiSinveflfiof1 afe feaction pfodocts of polyethef of polyeSfef feSinS vitha polyisocyanate if1 the feSence of 1vateT, an activatof and/of as11fface actio agont. In I1oSt caSeS, a halogenated Satufated ali hatichydfo cafbon Snch aS Ffeof1 fnay be added aS a blovving agent. Theliqoid foanlable fesif1 fflay be Supplied fo the con tainef 4 of 30 byIneanS of a total pfepolyn1ef SyStefn i.e. Whefe a bfanched chaif1polyeStef fesif1 of a polyethef fesiI1 iS foacted in the abSonCe ofvatef with a1 eXoess ovef Stoichionletfio afflouflt of polyiSocyanateand the foan1od feSif1 is fonned by ff1b(ing ffliS feactioo pfoductvvith atef, an aotivatof, and/of a Sofface active agent; by ff1eans of apaftia1 (quaSi) pfepolyInef SysteIn fe. Whefe a bfanched chain polyesteffesin of a polyefhef fesif1 is feaofed if1 fhe abSenCe of watef vvith anexCoSS ovef S toichio1fletfic afnount of polyisocyanate and the foaInedfesin is fofmed 'by fflixing thiS feaction pfoduct vvith a bfanchedcha1n polyoStef of polyothef fesin, vatef, an activatof and/of a Soffaceactive agent, of a one Shof SyStem, i.e. whefe a oolyestef feSiI1 of apolyethef feSin, a po1yiSooyanate, Wafef and an activatof of catalyStafo bfooght info intiInate contact by agitation to fofn1 the foamedfesin. In an of fheSe caSeS, Satofated aHphatic hydfocafboo such aSFfeon n1ay be added vvith watef and 1ho activatof aS a b1OWing agent.

Typica1 polyethef and polyeStef feSins, polyiSocyanafeS, activatofs,sufface active agents fof pfodocing the po1y ofethane fesi11 Whioh fnaybe used aS the pfoteoti cushioning n1atefia1 in thiS invention afediScloSod by the Ffeoman U.S. 2 895 603 Sifnon et aL, U.S. Z 897,641,

U.S. Z 591 884 and Hoppe U.S. Z 764 565 patentS. Any polyufethane foan1nJay be utilized in thiS inventionl The po1yofethane foan1S 11filizedfnay have vafying dogfeeS of 11exfbi1ify and feSilienoe. The foamS fnayvafy ffom the felatively unyielding and figid to felatively nexib1e andfeSilient depending opon the aftic1e that iS to be packaged. otheffoamed matefialS beSides the po1yufe thaneS fnay bo USod aS thecuShioning fnatefial in fhe paokage of thfS invention- TheSe inclodefoafned polyethylene, foaIned po1ystyfene, etc.

The fonowing eXafnples afe difected to fypica1 pfepafa tionS of foafnedfeSinS that can bo Usod fof the coshioning 1Tlatefia1 of the package ofthiS inventiof1. TheSe examples afe Shown fof the UfpoSe of iHostfafingceftain foffflulations of foanled feSins vVhich can be ut0ized in theinvention and afe not to be constfued as 1iIniting the invention tothoSe foffnu1ationS.

ExompZE Z 30 gfaols of a polyeStef cofnponent pfepafed ffom 1 mo1e ofglycefo1, 1.5 mo1es of phtha1ic anhydfide and 05 mole of oleio acid, and0.16 gfam of watef, Z0 gfamS of a IfliXtofe cofflpfisiTlg 1 fflolo ofInefa-tolIlene di iSooyanate and 0.055 ffole. of o-dihydfoxybooZene and,1 gfam of stainleSS Steel lining povvdof afo fniXed togothef at afeInpefatofe of about 140 F. fof a efiod of thfee fnintlteS iost at thepoint of additiof1 into containef 4 of 30 by fneans a Inofof dfivenSfiffef, fftef n1ixfng fof thfee fninoteS the -Infxtofe is poufed intothe containef 4 of 30 whefe ft feacfs and foamS.

100 paftS by volome of a po1yeStef pfopafed ffom 16 fnoles of adipicacid, 16 fflo1es of diethylene g1yco1 and 1 ff1ole oftffInethylolpfopane, held at a teInpefatufo of 22 (Z., 47 paffs byvo1UIno of foloone difSocyanafe he1d of a tempefatofe of 18 C, and 10paftS by vo1ome of an activatof mixtUfe aS deScfibed below, held at atempefatofo of 18 C., Wefe bfought togethef oSing the n1ixtofe appafafuSdeScfibed in FIGURE 4 of the Hoppe Patent 1J.S. 2,764 565 and injecfedinto the cof1tainef of thiS in vention- The activatof IniXtufe conSistedof 3 paffS by volofne of the adipfc eStef of 1`Idiethy1 afnif1o ethanoL1 paff by volofne of amn1onium oleate, 1.5 pafts by vo1ome ofS11lp11onated caSfof of1, 1.5 paftS by volUne of watef and 05 paft byvo1ome of pafa01n oil.

paftS by vveight of a polyeStef con1ponent pfepafed ffofn 4 n1olos ofglyCofoL 25 n1olos of adipic acid and 05 fno1e of phtha1ic anhydfide afemixed with 40 paftS by voight of an activatof coInponent coInpfiSing 39paftS by Weight of fneta toluene diisocyanate, 0.5 paft by vveight ofZinc stoafato and 0.5 paft by vveight of alllfnin1fI1 1oaf ing powdef.Mixing fof 30 SecondS of the two componentS, by Ineans of a Inotofdfiven Sfiffef, vaS caffied out befofe the conlponents vvefe poufed intothe confainef of tfliS invention.

Having deScfibed ffly inventfon vvhat I claifn is nev and deSife toSecofe by LeftefS Patent iS= 1. z^fn eaSily fopfufable package fofpackaging pofen tially daInagoable aftic1eS oofnpffsing a containefhaving an outSide and inSide Suffaoe, Said containef having at 1eaSt oneSubStantially cononoous deSignated 1ine eXtend ing substantiaHy afoUndsaid outside Sofface of Said con tainef, at leaSf one pfotective enveloe positioned in said Containef, Said enve1ope colTlpfiSing tvvo Sheetsand a figid ffafne Inen1bef suppofting Said SheetS on1y at the pefiheffes thefeof, Said ffaIne nen1bef having connecting sideS, top andbottoIn, Said Sides being adapted Upon cof ting to Sepafate, Said ffaInenlen1bef being positioned in Said containef SubstantiaHy coeXtenSfveWith Said continuous line, Said to Side of Said ffanle being aboveSaid1ine and Said botfofn Side of Said ffafne being below said line, oneof Said sheetS connected to the bottom Side of Said ffaIne Inenlbef andthe ofhef of said Sheets. connected to the top side of said ffamen1embef so as to dene a coIn pletely enclosed Space, Said SheetS beingpoSitioned out of contact With each other in Said top and bottomnleInbeTS of Said fTame, Said aTticleS being encloSed within said enclosod Space, a plurality of Solid suppofting IneanS poSi tioning Saidffan1e Inen1bef subStantiaHy coeXtenSive vvith said contin11oos line, aITlaSS of celllllaT plastic nlatefial Supporting Said bottoIn side ofsaid envelope vvithin Said containef in Said desired position and aSeparate InaSSl of cenular plaStic Inatefial SuppoTting Said top side ofSaid envelope vvithin said containe1 in Said deSiTed position.

Z. The I1eaI1S of claiIn 1 whefein Said plastic InateTial is foampolyufethane.

3. An easily TuptuTable package fof packaging poten tially daITlageablearficles coInpfising a containeT having outSide and inSide suffaceS,Said containef having a plI1 Tality of SubStantially continuoUSdosignated lines exfend ing substantially around the outSide sufface ofsaid con tainer, a pIUTality of protective envelopoS positioned vvith inSaid containeT, each of Said envelopeSl coIT1pfising tvvo sheets and aTigid ffame member SUppofting said sheefs only at the pefipherieStheTeof, each of Said ffafne Inen1 beTS having connecting SideS top andbottoTn, Said sides being adapted on c11tting to sepaTate, each of saidffaIne IneInbeTS being posftioned in said containeT subStantiallycoeXtensive vvith one of Said continnons lineS, each of said top SideSof Said ffan1e lying above said line With Which it iS cooXtenSfve andeach of Said boffom Sides of Said fran1e lying bolow Said line Withvvhich it is coextensive, one of Said sheetS connected to each of Saidbotton1 sideS of said ffame members and the othef of Said sheetSconnected to each of the top sideS of Said fTaII1e nleInbeTS So aS todene cofnpletely encloSed spaceS, Said Sheets being poSitioned out ofcontact with each otheT in top and bottom membeTS of the ffame, Saidartic1os being enclosed Within each of Said encloSed SpaceS, a pluTalityof Suppofting TIleanS positioning Said ffanle nlen1befs Sub stantiallycoextensive vvith each of said continuous lines, a p1Urality of SepaTateInaSSes of yielding ceHula1 plastic InateTial Snppofting each of SaidbottoIn SideS of Said envelope Vvithin said container in said positionand a p111 Tality of Separate InaSSes of ceHulaf plastic nlateTial sUppofting each of Said top sideS of said envelopes Within said containeTin said position.

4. 1/IeanS of claiIn 3 Wherein Said plastic InateTia1 iS foampolyuTethane.

8 5. An eaSily Tuptufable packago fof packoging poten tiallydaITlageable aIticles conpfiSing a containef having oI1tsido and inSidesurfaceS, Said containef having a con tinuous deSignated line extendingsobstantially afoUnd the oI1tSide Sufface of Said container, apTotective envelope positioned vvithin Said containef Substantianycoextensive vvith s,aid continuoUS li11e, Said onvelope coInprising tvvosheets and a rigid ffame membof suppofting Said Sheets only at thepefipheTies thereof, Said fraIne IneInbeT hav ing connecting sideS, topand bottof1, Said sides being adapted o cutting to sepafate, Said topSide of Said frame Inen1bef being above Said line, Said boftom side ofsaid ffaIne Inen1beT being below said 1ine, one of said sheets connectedto Said top Side of Said ffaIne IneInbef and the othef of Said Sheetsconnected to the bottoIn Side of Said ffan1e Inembor So aS to deHne acompletoly endoSed space, Said sheets being poSitioned out of contactvvith each othe1 in Said top and bottom n1en1beTS of said ffaIne, Saidarticle bein enclosed within said enclosed s ace, a n1eans forsuppofting Said envelope vvithin the container in a desiTed position, afSt maSS of ceHulaf plastic mate- Tial Supporting Said bottom Side ofSaid envolope vithin said container in said desifed position and asecond Sepa Tate maSS of ceHulaf plastic matefial suppofting said topSide of Said envelope vithin Said containef in Said deSiTed position.

6. The package accoTding to claim 5 wheTein Said laS tic InateTial iS,polyurethane.

}eferences Cifed by the Exan1iner UNITED STATES PATENTS Rey Z4,7671/1960 siInon et al 20646 2 681,14Z 6/1954 Cohen 20646 Z,897 641 8/1959Simon et al S35 2 978 O99 4/1961 BUSh ZO66S Z 98S,Z87 S/1961 Schulz20646 2 994,4Z 8/1961 Honeycutt ZO646 3 O6Lo89 10/196Z Higgins Z06-6 306o 38Z 1Z/19oZ Zweigle et aL Z0o46 FoREIGN PATENTS 467,281 8/19S0Canada.

THERON E. CoNDoN, Pmr ExmEr.

EARLE I. DRUMMOND, Eme

1. AN EASILY RUPTURABLE PACKAGE FOR PACKAGING POTENTIALLY DAMAGEABLEARTICLES COMPRISING A CONTAINER HAVING AN OUTSIDE AND INSIDE SURFACE,SAID CONTAINER HAVING AT LEAST ONE SUBSTANTIALLY CONTINUOUS DESIGNEDLINE EXTENDING SUBSTANTIALLY AROUND SAID OUTSIDE SURFACE OF SAIDCONTAINER, AT LEAST ONE PROTECTIVE ENVELOPE POSITIONED IN SAIDCONTAINER, SAID ENVELOPE COMPRISING TWO SHEETS AND A RIGID FRAME MEMBERSUPPORTING SAID SHEETS ONLY AT THE PERIPHERIES THEREOF, SAID FRAMEMEMBER HAVING CONNECTING SIDES, TOP AND BOTTOM, SAID SIDES BEING ADAPTEDUPON CUTTING TO SEPARATE, SAID FRAME MEMBER BEING POSITIONED IN SAIDCONTAINER SUBSTANTIALLY COEXTENSIVE WITH SAID CONTINUOUS LINE, SAID TOPSIDE OF SAID FRAME BEING ABOVE SAID LINE AND SAID BOTTOM SIDE OF SAIDFRAME BEING BELOW SAID LINE, ONE OF SAID SHEETS CONNECTED TO THE BOTTOMSIDE OF SAID FRAME MEMBER AND THE OTHER OF SAID SHEET CONNECTED TO